87789542 has 16 divisors (see below), whose sum is σ = 132972192. Its totient is φ = 43467840.

The previous prime is 87789523. The next prime is 87789563. The reversal of 87789542 is 24598778.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168242 + ... + 168762.

It is an arithmetic number, because the mean of its divisors is an integer number (8310762).

Almost surely, 2^87789542 is an apocalyptic number.

87789542 is a deficient number, since it is larger than the sum of its proper divisors (45182650).

87789542 is a wasteful number, since it uses less digits than its factorization.

87789542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183.

The product of its digits is 1128960, while the sum is 50.

The square root of 87789542 is about 9369.6073557007. The cubic root of 87789542 is about 444.4411483969.

The spelling of 87789542 in words is "eighty-seven million, seven hundred eighty-nine thousand, five hundred forty-two".